problem connecting to the internet

i reinstalled windows on my other pc (main pc) and then tried to acces the internet, didn't work.
i went to see network locations and there wasn't any connection(LAN CONNECTION or something) i reinstalled windows again(yea i did) and i still had the same problem, anyone know how i can get on the web again?
i also have problems making a homenetwork between this and the other pc
anyone have a solution ? thx

and i think (im almost sure) that this is a software problem because this morning it was working and now its screwed up, any of you might know some software or programms that will help me out of this?

When you reinstalled windows, did you install the motherboard drivers off the cd that came with the motherboard? or is this a pre-built like a Dell, HP, etc....?
Look under device manager and see if you have any yellow question marks or exclamation marks.

omgawd, i now run the cd of asus and it says audio driver etc, so this is prolly it lol, but then i think the internet will still be screwed cuz i never had this before, but i will tell it here, thanks alot for the help

it worked both internet and audio man thanks alot
it was stupid from me but i thought i didn't have to because it said support cd so i thought it was a manual or a disclaimer or something

thx!!!!!!! sturm i will remember this

ok but one more question,
when i play music now it doesn't say 'cannot find sound card' but there just is no sound out of my speakers... very weird anyone know wha tthis is?